Crossbreeding: Considerations and Alternatives in an Evolving Market Nevil C
Total Page:16
File Type:pdf, Size:1020Kb

Load more
Recommended publications
-
Breed Relationships and Definition in British Cattle
Heredity (2004) 93, 597–602 & 2004 Nature Publishing Group All rights reserved 0018-067X/04 $30.00 www.nature.com/hdy Breed relationships and definition in British cattle: a genetic analysis P Wiener, D Burton and JL Williams Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS, UK The genetic diversity of eight British cattle breeds was not associated with geographical distribution. Analyses also quantified in this study. In all, 30 microsatellites from the FAO defined the cohesiveness or definition of the various breeds, panel of markers were used to characterise the DNA with Highland, Guernsey and Jersey as the best defined and samples from nearly 400 individuals. A variety of methods most distinctive of the breeds. were applied to analyse the data in order to look at diversity Heredity (2004) 93, 597–602. doi:10.1038/sj.hdy.6800566 within and between breeds. The relationships between Publishedonline25August2004 breeds were not highly resolved and breed clusters were Keywords: British cattle; breeds; diversity; microsatellites Introduction 1997; MacHugh et al, 1994, 1998; Kantanen et al, 2000; Arranz et al, 2001; Bjrnstad and Red 2001; Beja-Pereira The concept of cattle breeds, rather than local types, is et al, 2003). said to have originated in Britain under the influence of The goal of this study was to use microsatellite Robert Bakewell in the 18th century (Porter, 1991). It was markers to characterise diversity levels within, and during that period that intensive culling and inbreeding relationships between, a number of British cattle breeds, became widespread in order to achieve specific breeding most of which have not been characterised previously. -
Beef Showmanship Parts of a Steer
Beef Showmanship Parts of a Steer Wholesale Cuts of a Market Steer Common Cattle Breeds Angus (English) Maine Anjou Charolaise Short Horn Hereford (English) Simmental Showmanship Terms/Questions Bull: an intact adult male Steer: a male castrated prior to development of secondary sexual characteristics Stag: a male castrated after development of secondary sexual characteristics Cow: a female that has given birth Heifer: a young female that has not yet given birth Calf: a young bovine animal Polled: a beef animal that naturally lacks horns 1. What is the feed conversion ratio for cattle? a. 7 lbs. feed/1 lb. gain 2. About what % of water will a calf drink of its body weight in cold weather? a. 8% …and in hot weather? a. 19% 2. What is the average daily weight gain of a market steer? a. 2.0 – 4 lbs./day 3. What is the approximate percent crude protein that growing cattle should be fed? a. 12 – 16% 4. What is the most common concentrate in beef rations? a. Corn 5. What are three examples of feed ingredients used as a protein source in a ration? a. Cottonseed meal, soybean meal, distillers grain brewers grain, corn gluten meal 6. Name two forage products used in a beef cattle ration: a. Alfalfa, hay, ground alfalfa, leaf meal, ground grass 7. What is the normal temperature of a cow? a. 101.0°F 8. The gestation period for a cow is…? a. 285 days (9 months, 7 days) 9. How many stomachs does a steer have? Name them. a. 4: Rumen, Omasum, Abomasum, and Reticulum 10. -
"First Report on the State of the World's Animal Genetic Resources"
Country Report of Australia for the FAO First Report on the State of the World’s Animal Genetic Resources 2 EXECUTIVE SUMMARY................................................................................................................5 CHAPTER 1 ASSESSING THE STATE OF AGRICULTURAL BIODIVERSITY THE FARM ANIMAL SECTOR IN AUSTRALIA.................................................................................7 1.1 OVERVIEW OF AUSTRALIAN AGRICULTURE, ANIMAL PRODUCTION SYSTEMS AND RELATED ANIMAL BIOLOGICAL DIVERSITY. ......................................................................................................7 Australian Agriculture - general context .....................................................................................7 Australia's agricultural sector: production systems, diversity and outputs.................................8 Australian livestock production ...................................................................................................9 1.2 ASSESSING THE STATE OF CONSERVATION OF FARM ANIMAL BIOLOGICAL DIVERSITY..............10 Major agricultural species in Australia.....................................................................................10 Conservation status of important agricultural species in Australia..........................................11 Characterisation and information systems ................................................................................12 1.3 ASSESSING THE STATE OF UTILISATION OF FARM ANIMAL GENETIC RESOURCES IN AUSTRALIA. ........................................................................................................................................................12 -
Pho300007 Risk Modeling and Screening for Brcai
?4 101111111111 PHO300007 RISK MODELING AND SCREENING FOR BRCAI MUTATIONS AMONG FILIPINO BREAST CANCER PATIENTS by ALEJANDRO Q. NAT09 JR. A Master's Thesis Submitted to the National Institute of Molecular Biology and Biotechnology College of Science University of the Philippines Diliman, Quezon City As Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE IN MOLECULAR BIOLOGY AND BIOTECHNOLOGY March 2003 In memory of my gelovedmother Mrs. josefina Q -Vato who passedaway while waitingfor the accomplishment of this thesis... Thankyouvery inuchfor aff the tremendous rove andsupport during the beautifil'30yearstfiatyou were udth me... Wom, you are he greatest! I fi)ve you very much! .And.. in memory of 4 collaborating 6reast cancerpatients who passedaway during te course of this study ... I e.Vress my deepest condolence to your (overtones... Tou have my heartfeligratitude! 'This tesis is dedicatedtoa(the 37 cofla6oratingpatients who aftruisticaffyjbinedthisstudyfor te sake offuture generations... iii This is to certify that this master's thesis entitled "Risk Modeling and Screening for BRCAI Mutations among Filipino Breast Cancer Patients" and submitted by Alejandro Q. Nato, Jr. to fulfill part of the requirements for the degree of Master of Science in Molecular Biology and Biotechnology was successfully defended and approved on 28 March 2003. VIRGINIA D. M Ph.D. Thesis Ad RIO SUSA B. TANAEL JR., M.Sc., M.D. Thesis Co-.A. r Thesis Reader The National Institute of Molecular Biology and Biotechnology endorses acceptance of this master's thesis as partial fulfillment of the requirements for the degree of Master of Science in Molecular Biology and Biotechnology. -
Subchapter H—Animal Breeds
SUBCHAPTER HÐANIMAL BREEDS PART 151ÐRECOGNITION OF Book of record. A printed book or an BREEDS AND BOOKS OF RECORD approved microfilm record sponsored OF PUREBRED ANIMALS by a registry association and contain- ing breeding data relative to a large number of registered purebred animals DEFINITIONS used as a basis for the issuance of pedi- Sec. gree certificates. 151.1 Definitions. Certificates of pure breeding. A certifi- CERTIFICATION OF PUREBRED ANIMALS cate issued by the Administrator, for 151.2 Issuance of a certificate of pure breed- Bureau of Customs use only, certifying ing. that the animal to which the certifi- 151.3 Application for certificate of pure cate refers is a purebred animal of a breeding. recognized breed and duly registered in 151.4 Pedigree certificate. a book of record recognized under the 151.5 Alteration of pedigree certificate. regulations in this part for that breed. 151.6 Statement of owner, agent, or im- porter as to identity of animals. (a) The Act. Item 100.01 in part 1, 151.7 Examination of animal. schedule 1, of title I of the Tariff Act of 151.8 Eligibility of an animal for certifi- 1930, as amended (19 U.S.C. 1202, sched- cation. ule 1, part 1, item 100.01). Department. The United States De- RECOGNITION OF BREEDS AND BOOKS OF RECORD partment of Agriculture. Inspector. An inspector of APHIS or 151.9 Recognized breeds and books of record. 151.10 Recognition of additional breeds and of the Bureau of Customs of the United books of record. States Treasury Department author- 151.11 Form of books of record. -
Crossbreeding Systems for Small Beef Herds
~DMSION OF AGRICULTURE U~l_}J RESEARCH &: EXTENSION Agriculture and Natural Resources University of Arkansas System FSA3055 Crossbreeding Systems for Small Beef Herds Bryan Kutz For most livestock species, Hybrid Vigor Instructor/Youth crossbreeding is an important aspect of production. Intelligent crossbreed- Generating hybrid vigor is one of Extension Specialist - the most important, if not the most ing generates hybrid vigor and breed Animal Science important, reasons for crossbreeding. complementarity, which are very important to production efficiency. Any worthwhile crossbreeding sys- Cattle breeders can obtain hybrid tem should provide adequate levels vigor and complementarity simply by of hybrid vigor. The highest level of crossing appropriate breeds. However, hybrid vigor is obtained from F1s, sustaining acceptable levels of hybrid the first cross of unrelated popula- vigor and breed complementarity in tions. To sustain F1 vigor in a herd, a a manageable way over the long term producer must avoid backcrossing – requires a well-planned crossbreed- not always an easy or a practical thing ing system. Given this, finding a way to do. Most crossbreeding systems do to evaluate different crossbreeding not achieve 100 percent hybrid vigor, systems is important. The following is but they do maintain acceptable levels a list of seven useful criteria for evalu- of hybrid vigor by limiting backcross- ating different crossbreeding systems: ing in a way that is manageable and economical. Table 1 (inside) lists 1. Merit of component breeds expected levels of hybrid vigor or het- erosis for several crossbreeding sys- 2. Hybrid vigor tems. 3. Breed complementarity 4. Consistency of performance Definitions 5. Replacement considerations hybrid vigor – an increase in 6. -
Downloaded 17 July 2016
THE AUSTRALIAN WATER BUFFALO MANUAL Barry Lemcke Department of Primary Industry and Resources Northern Territory Government FOREWORD The Australian Water Buffalo Manual is a technical manual for the buffalo farming industry in Australia. Its author, Barry Lemcke, is a Northern Australian livestock scientist with over 42 years of experience, including a career focus on buffalo management research. The Manual reflects the extent of Barry’s knowledge and experience gained over his long career and is written in a style that makes the information accessible for all readers. It includes findings from research undertaken at Beatrice Hill Farm, Australia’s only buffalo research and development facility as well as from Barry’s travels related to the buffalo industry in numerous countries. The success of the dual purpose NT Riverine Buffalo derived from Beatrice Hill Farm, which now have progeny Australia-wide, can be largely attributed to Barry’s knowledge, dedication and persistence. John Harvey Managing Director Rural Industries Research and Development Corporation ACRONYMS AND ABBREVIATIONS USED AACo Australian Agricultural Company ABARES Australian Bureau of Agricultural and Resource Economics and Sciences AI Artificial Insemination AMIEU Australasian Meat Industry Employees Union BEF Bovine Ephemeral Fever BHF Beatrice Hill Farm (Northern Territory Government Buffalo Research Facility) BTEC National Brucellosis and Tuberculosis Eradication Campaign (Australia) cv Cultivar DM Dry Matter EEC European Economic Community ESCAS Exporter Supply -
A Compilation of Research Results Involving Tropically Adapted Beef Cattle Breeds
A COMPILATION OF RESEARCH RESULTS INVOLVING TROPICALLY ADAPTED BEEF CATTLE BREEDS S-243 and S-277 Multistate Research Projects Southern Cooperative Series Bulletin 405 http://www.lsuagcenter.com/en/crops_livestock/livestock/beef_cattle/breeding_genetics/trpoical+breeds.htm Contact information: Dr. David G. Morrison, Associate Director Louisiana Agricultural Experiment Station P. O. Box 25055 Baton Rouge, Louisiana 70894-5055 Phone: 225-578-4182 FAX: 225-578-6032 Email: [email protected] ISBN: 1-58161-405-5 State Agricultural Experiment Stations do not discriminate on the basis of race, sex, color, religion, national origin, age, disability, or veteran status in provision of educational opportunities or employment opportunities and benefits. - 1 - Preface The Southern region of the U.S. contains approximately 42% of the nation’s beef cows and nearly 50% of its cow-calf producers. The region’s environment generally can be characterized as subtropical, i.e. hot, humid summers with ample rainfall supporting good forage production. Efficient cow-calf production in the humid South is dependent on heat and parasite tolerance and good forage utilization ability. Brahman and Brahman-derivative breeds generally possess these characteristics and excel in maternal traits. Consequently, they have been used extensively throughout the Southern Region in crossbreeding systems with Bos taurus breeds in order to exploit both breed complementarity and heterosis effects. However, several characteristics of Brahman and Brahman crossbred cattle, such as poor feedlot performance, lower carcass quality including meat tenderness, and poor temperament, whether real or perceived can result in economic discounts of these cattle. Therefore, determining genetic variation for economically important traits among Brahman and Brahman-derivative breeds and identifying tropically adapted breeds of cattle from other countries that may excel in their performance of economically important traits in Southern U.S. -
Communicating with the Calf
12 Communicating with the calf This chapter describes how to interpret the wellbeing of a calf from its behaviour and appearance. The main points in this chapter • Calves give many signals that indicate that they are in good (or poor) health and quick observations by the rearer can help treat any disease conditions early. • It is important for rearers to form bonds with their calves so the calves will cooperate more fully, particularly following treatment for diseases. • It is important for rearers to develop their own ‘dictionary of calf language’. • Rearers should learn to closely observe and interpret changes in both calf appearance and in their normal behaviour, which might be symptomatic of stress. • Calf scours comes in many forms and colours, all of which can be used to help diagnose a cause. • It is important to understand how calves react to people so that rearers’ management practices can be changed accordingly. • Farm owners and managers should communicate with their calf rearers. • Developing a set of standard operating procedures, and writing them down, can help maintain consistency in managing and training new staff in the desired skills of calf rearing. • Contract calf rearers can provide the right motivation and skills to rear calves better than staff on the home farm. Success or failure in raising calves depends to a great extent on the rearers’ attitude to the calves and their ability to react promptly to the calves’ numerous signals (Figure 12.1). Interpreting these signals is a skill that can be easily learnt. Recent developments in calf rearing are directed towards reducing the average time spent with each calf. -
Behavioral Genetics
Domestic Animal Behavior ANSC 3318 BEHAVIORAL GENETICS Epigenetics Domestic Animal Behavior ANSC 3318 Dogs • Sex Differences • Breed Differences • Complete isolation (3rd to the 20th weeks) • Partial isolation (3rd to the 16th weeks) • Reaction to punishment Domestic Animal Behavior ANSC 3318 DOGS • Breed Differences • Signaling • Compared to wolves • Pedomorphosis • Sheep-guarding dogs HEELERS > HEADERS-STALKERS > OBJECT PLAYER >ADOLESCENTS Domestic Animal Behavior ANSC 3318 Dogs • Breed Differences • Learning ability • Forced training (CS) • reward training (BA) • problem solving (BA, BEA, CS) Basenjis (BA), beagles (BEA), cocker spaniels (CS), Shetland sheepdog (SH), wirehaired fox terriers (WH) Domestic Animal Behavior ANSC 3318 Dogs Behavioral Problems • Separation • Thunder phobia • Aggression • dominance (ESS) • possessive (cocker spaniel) • protective (German Shepherd) • fear aggression (German Shepherd, cocker spaniel, miniature poodles) Domestic Animal Behavior ANSC 3318 Dogs Potential factors associated with aggression • Area-related genetic difference • Dopamine D4 receptor • Other Neurotransmitter • Monoamine oxidase A • Serotonin dopamine metabolites • Gene polymorphisms (breed effects) • Glutamate transporter gene (Shiba Inu) • Tyrosine hydroxylase and dopamine beta hydroxylase gene • Coat color • High heritability of aggression • Golden retrievers Domestic Animal Behavior ANSC 3318 Horses • Breed differences • dopamine D4 receptor • A or G allele? https://ker.com/equinews/hot-blood-warm- blood-cold-blood-horses/ Domestic -
Cattle Inheritance . I . Color'
CATTLE INHERITANCE . I. COLOR' HEMAN L . IBSEN Kansas A gricdtural Experiment Station. Manhattan. Kansas Received January 31. 1933 TABLE OF CONTENTS PAGE ......................... 442 COLORGENES ................................................................... 442 Red, R ....................................................................... 442 Black, B ..................................................................... 443 Black Spotting, Bs ............................................................ 443 Modifiers: much black, M, little black, L ....................................... 444 Brindle, Br .................................................................. 445 Intensity and dilution: I and i; D and d ....................................... 447 Self and recessive white spotting, S and s ........................................ 448 Modifiers of s: little white, Lw, much white, Zw ....................... ......... 449 pigmented leg, PI, unpigmented leg, pZ ............................ 449 Roan, N ..................................................................... 451 Roan modifier, rm .... .................................. 454 Recessive white (Nellore cattle), ?evz ............................................. 455 Dominant white (Park cattle), W'p ............................................. 457 Dominant white spotting ....................................................... 458 1 . Hereford pattern, SH...................................................... 458 Modifiers: little white, Lw,much white, Zm .................................. -
Complaint Report
EXHIBIT A ARKANSAS LIVESTOCK & POULTRY COMMISSION #1 NATURAL RESOURCES DR. LITTLE ROCK, AR 72205 501-907-2400 Complaint Report Type of Complaint Received By Date Assigned To COMPLAINANT PREMISES VISITED/SUSPECTED VIOLATOR Name Name Address Address City City Phone Phone Inspector/Investigator's Findings: Signed Date Return to Heath Harris, Field Supervisor DP-7/DP-46 SPECIAL MATERIALS & MARKETPLACE SAMPLE REPORT ARKANSAS STATE PLANT BOARD Pesticide Division #1 Natural Resources Drive Little Rock, Arkansas 72205 Insp. # Case # Lab # DATE: Sampled: Received: Reported: Sampled At Address GPS Coordinates: N W This block to be used for Marketplace Samples only Manufacturer Address City/State/Zip Brand Name: EPA Reg. #: EPA Est. #: Lot #: Container Type: # on Hand Wt./Size #Sampled Circle appropriate description: [Non-Slurry Liquid] [Slurry Liquid] [Dust] [Granular] [Other] Other Sample Soil Vegetation (describe) Description: (Place check in Water Clothing (describe) appropriate square) Use Dilution Other (describe) Formulation Dilution Rate as mixed Analysis Requested: (Use common pesticide name) Guarantee in Tank (if use dilution) Chain of Custody Date Received by (Received for Lab) Inspector Name Inspector (Print) Signature Check box if Dealer desires copy of completed analysis 9 ARKANSAS LIVESTOCK AND POULTRY COMMISSION #1 Natural Resources Drive Little Rock, Arkansas 72205 (501) 225-1598 REPORT ON FLEA MARKETS OR SALES CHECKED Poultry to be tested for pullorum typhoid are: exotic chickens, upland birds (chickens, pheasants, pea fowl, and backyard chickens). Must be identified with a leg band, wing band, or tattoo. Exemptions are those from a certified free NPIP flock or 90-day certificate test for pullorum typhoid. Water fowl need not test for pullorum typhoid unless they originate from out of state.